Induction-coil.



PATENTED FEB. 4, 1908.

R. VARLEY. INDUCTION COIL. APPLMATION FILED I'EB.8. 1905.

, nnrrnn s'rntrns PArnNr en ries.

RICHARD VARLEY, OF ENGLEWOOD, NEW JERSEY, ASSIGNOR TO THE AUTOGOIL COMPANY, A CORPORATION OF NEW JERSEY.

No. crease.

INDUCTION-COIL.

Patented Feb. 4, 1908.

Mnlication filed February 8. 1905- Serial No. 244,720.

T 0 all whom may concern:

Be it known that I, RICHARD VARLEY, a citizen of the United States, residing at Englcwood, in" the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Induction- Coils, of which the following a full, clear, and exact description.

This invention relates to induction coils adapted for ignition circuits of explosion motors used for propelling automobiles and motor boats.

The object of the invention is to provide an apparatus of simple construction, easily and quickly manipulated and which wil occupy but small space andwill not be liable to get out of order.

Some features of my improvements relate to multiplex coils or to a .number of coils adapted for a multiple cylinder engine and to the housing of such coils in a single box from which. they can be readily removed and replaced without liability of deranging the circuits.

Other features of improvement have to do with the construction of a single coil.

The invention consists of the details of construction which will be hereinafter described and claimed.

In the accompanying drawings: Figure 1 is a front elevation of a two-coil or two-unit box with parts in section; Fig. 2 is an irregular vertical section of the casing and its attachments, showing one of the coils displaced; Fig. 3 is a section of a part of the casing and elevation of one of the coil casings illustrating the mechanical and electrical connection Fig. i is a diagram of the circuits, and Fig. 5 is a view of a switch plug.

Referring to the drawings by numerals of reference, 1 is a box having a cover 2. This box, as comprehended by this invention,

mayabe of any size to accommodate any number of independent induction coils wit their attachments. As illustrated, it is adapted to receive two of the coil units and these are supposed to be used in connection with a two-cylinder explosion engine. The

box is rectangular in shape, its body portion being adapted to receive the coil casings and its cover to house the vibrators attached to one end of the coil casings.

On the inside of the front wall of the box are attached two strong metal strips 3 and 4,-

respectively, for each coil casing, the second with one end of the secondary winding.

set of strips'for the second. coil casing being indicated by 3 and 4 these project above the body portion of the box slightly and are thereformed with notches 5 for the entrance of qfastening. screws, as will be hereinafter described. The opposite ends of strips 3. 3, etc, projecttlniough slots in the bottom of the box and are bent at right angle against the exterior of the bottom to receive binding posts6 and 7. Against the front of the box is fixed a metal plate 3, having a three plug holes 9, 10 and 11, respectively, to receive a metal plug illustrated in Fig. 5. Behind this plate is attached an insulating block 12, shown conventionally in Fig. 4, which carries two metal springs-13 and 1d.

15, 16 and 17 indicate integral projections from the back of plate 8, so shaped and located that when the plug 18 of Fig. 5 is in serted in. the hole 9, spring 13 will be conk nected with the plate and when the plug is inserted in the hole 10, spring 14 w ill be connected with the plate and when the plug is inserted in the hole 11, both springs willbe connected with the plate by contact .with the parts 16 and 17. To the bottom of the box 1 are attached binding posts 19 and 20, and other binding posts 21 and 22, one for each coil unit, are attached to the bottom of the box and housed within non-conducting protecting covers 23. These last mentioned binding posts have stems assing through the bottom of the box an terminating in metal plates 24 to which are fastened spiral springs 25.

The two 0011 units contained in the casirig are indicated by 26 and 27 and as these are counterparts of each other, a dc. cription of one will sufiice. The induction coils consist of the usual primary and secondary windings located upon an iron core. These windings and the core are contained within rectangular boxes 28 each having secured to its bottom a metal plate 29 in position to rest upon the spring 25 when the unit is passed into the box 1. .This plate 29 connects interiorly I On the opposite or upper end of box 28, is fitted a frame 30 containing a vibrator 31 of any suitable construction and a contact screw 32 for making and breaking the primary circuit. Attached to each box 28 are two strong metal lugs 33, to one ofwhich one. end of the primary winding leads while (i other is elec trically connected with th' bra-tor. Each of these posts carries a screw 34-projecting forwardand in a position to ass into the notch at the upper endsof' t e respective strips 3, 4, the forked portion of the str1 s passing behind the head of theeserew. n this way the coil box is mechanically held firmly in the box 1 and at the same time'two in the box, they are placed therein one 'at a time, the screw 34'of each coil box being that good electrical contact w "drop 'ied into the notches of the corres ond- 15' ing. strips attached to the box 1 an the plates 29 at the bottom ofthe coil box commg naturally into contact with the springs 25. When the screws 34 are set up tightly, all of the units are firmly held in the box and cannot be displaced by ordinary disturbances. The resiliency of sprin s 25 is such ill always be maintained between plates 24 and 29, regardless of slight variations of position of the coil boxes and also regardless of any vibration to which the boxes may be subjected.

The function of plate 8 and the parts connected with it, is that of an electric switch and it is here used to bring into action either one or both of two batteries. In operating automobiles, it often happens that one battery will become exhausted at a time when the vehicle is out of reach of another,

' so it is customary to carry at least two batthe binding posts 19 and 20. posts other wires run to the respective teries at a time and'the switch herein described is used for throwing either battery into service at will, and when neither one alone is capable of yielding the amount of current required, they can bothbe thrown into use to obtain their added electromotive forces. The operation of this switch as well as the circuits involvedin my apparatus, will now be described in connection with Fig. 4.

The two batteries are indicated by 35 and 36. One side of each of them is grounded, to the frame of the machine,-while the other sides lead respectively by wires 37 and 38 to From these springs 13 and 14. Plate 8 connects with strip 4 by means of wire 39-and the two plates 4 and 4' are connected together by wire 40.

41 indicates a cam on the engine shaft capable of making contact during its rotation with two springs 42 and 43. Spring 42 con- 1 nects by. wire 44 with strip 3, while spring 43,

connects by wire 45 with strip 3. Posts 21 and 22 represented in the diagram by springs 5, connect with one side of the ignition plugs 46'and 47 in the respective cylinders of the engine, the opposite sides of each plug being grounded. Assuming the plug 18 to be inserted between the spring 13 and the projection 15 of the plate 8, it will be seen that when the cam 41 engages spring 42, the circuit will be closed through the primary of one induction coil'and the battery 35, as follows: From ground or frame to cam 41, contact 42,

7 wire 44, strip 3, primary winding and vibrator,

strip 4, wires 39, plate 8, plug 18, spring 13,

- wire 37 and battery 35 to ground. When the cam strikes s ring 43, the primary of the other induction co is connected in circuit with the samebattery 35, as can be readily traced over the wires 45 and 40. At each passage of current through the primary winding of a over wire 39, will pass to the spring 14 an thence to battery 36, battery 35 being cut out. If both batteries become weak and 'their combined forces are necessary to erform the work, the plug is inserted in the ole -11 and then'when either of the springs 42 or 43 is touched by the cam, the current flowing through wire 39 will come from both bat- 'teries 35- and 36 by way of both s rings 13 and 14, rojections 16 and 17 andp ug 18.

48 in icates the condensers bridging across the vibrators in the usual manner. I am aware that a switch capable of accomplishing the same purpose with respect to one or two batteries, has been used in connection with induction coils, but I claim herein the novelty of construction-of the switch described. The provision of the strips 3 and 4 in box 1 is avaluable feature of construction, because they furnish a solid support for the coil units and serve to electrically, as well as mechanically, connect them with the box and cir cuits, .the mere act of'properly adjusting the screws to the notched endsoflthe strips, automatically serving to bring and maintain the plate 29 and spring 25 into working connection to establish the secondary circuit.

Having described my invention, I claim 1- 1. The combination of a box having socured to its wall two metallic strips, forming part of an electric circuit, and an induction coil unit provided with means for mechanical and electrical engagement with saidstrips,

2. The combination of a box having two -metallic strips attached'to one of its walls and each provided with a notch in its end, an

exterior binding post carried by one of said' strips, and an induction coil unit having two electrical terminals in the form of binding devices adaptcd to engage the notches in thercsprctive strips to mechanically sustain the coil in the box and electrically connect it.

with circuits.

3. The combination of a box having a pin:

rality of strips secured'to one of its Walls,. I said strips projecting through the bottom oi thelbox and carrying binding posts and projecting above said wall and a plurality'of induction coil units having metallic fastening devices adapted to engage said projecting strips and serving to mechanically sustain he coil units and electrically connect them in controlling the primary current to all the coils.

5. In combination, a box or frame, a plurality of induction coils mounted therein, individual connections for the primary Winding of each coil, m'eariswhereby' any coil can be removed from the 'box or frame without disturbing the primary connections of the other coils, and a single switch-for controlling the primary current t t-H the coils.

6. In an ignition system, the'combination of a box or frame, a plurality of induction coils mounted therein and independently removable therefrom, a source of electricity common to all the primary windings of said induction coils electrical connections estabiished by the mounting of a coil in the box or frame to connect its primary coil incircuit with said source of electricity, and independthe clectrical connections to the other coils. 3 7'. In an ignition system, the combination of a-lbox or frame, a plurality of induction coils mounted therein and independently removable therefrom, a source of electricity common to all the primary windings of said induction coils, firing devices external to said box or frame, electrical connections established by the mounting of a coil in the box or frame to connect its primary coil in circuit with said-source of electricity and its secondary coil in circuit with said firing devices, and independent circuit connections whereby the removal of a coil from the box or frame will not afiect the electrical connections to the other coils.

"'81 In an ignition system, the combination of a. box or frame, a plurality of induction coils mounted therein and independently removable therefrom, two electrical contacts permanently fixed in the box or frame for each induction coil, and means for mechanically fastening each coil in the box which means also comprises electrical connections. between the termmals of the primary windings and a pair of said contacts, one of each pair of said contacts being electrically connects together.

9. In an ignition system, the combination of a box'or frame, a plurality ofv induction coils mounted therein and independently removable therefrom, two'elcctrical contacts unit-connections whereby the removal 0 a'coil from the box or frame Wlll not affect permanently fixed in the box or frame for each induction coil, means for mechanically fastening each cbil in the box, which means also comprises electrical connections between the t'cr minals of the primary windings and a pair of said contacts, one of each pair of said cont-acts being electrically con11e(.-ted,.-t gether, and a-tlurd contact on the box or each coil with two of said contacts, one each of said pairs of contacts being electrically connected together within or upon said box or frame and to one pole of a source of electricity, and a switch adapted to connect the other contacts successively with the other pole of said source of electricity.

11. In an ignition system, the combination of a box or frame, a plurality of induction coils mounted therein and inde cndently removable therefrom, a air of e ectrical contacts permanently fixe in the box or frame for each induction coil, means for connecting the two terminals of the primary winding of each coil with the members of its respective pair of contacts, one member of each of said pairs of contacts being electrically connected together within or upon said box or frame, and to one ole of a source of electricity, and a switch a apted to connect the other member of each pair of contacts successively with the other pole of said source of electricity.

12. In an ignition system, the combination of a box or frame, a plurality of induction coils mounted therein and independently removable therefrom, a pair of electrical contacts permanently fixed in the box orframe for each induction coil, means for connecting the two terminals of the primary winding of each coil with the members of its ctive pair of contacts, one member of respX eac of said pairs of contacts being electrically connected together within or upon said box or frame, and to one pole of a source of electricity, a switch adapted to connect the other member of each pair of contacts successively with the other pole of said source of electricity, and means whereby the secondary winding of each coil is connected in one for each cylinder, and each havin a suitable vibrator upon one end, and the e ectrical connections at or near the other end, some of which connections rotrude through the case and are provided or external connection thereon, substantially as shown and.

position owhich shall complete the electric circuit of one battery singly, and in one position shall complete the circuit for two batteries conjointly, substantially as shown and described.

16. In combination with a sparking coil' foras engine, the electric current thereof whic is supplied by batteries, a lplug switch, one position of which shall comp etc the electric circuit of one battery sing and in one position shall complete the circuit for two atteries congointly, substantially as shownand describe battery circuit thereof, a plug switch containing three or more plugging holes, twp.

each connecting a singe circuit inde ently, and one connecting two circuits in multiplethereof, substantially as and for the purpose set forth.

.n witness whereof, 'l' subscribe my'signature, in the presence of two witnesses.

RICHARD VARLEY.

Witnesses:

FRANK S. Onnn, WALDO M; GHAPIN.

' DISGLAIMER.

Enters this disclaimerfor the purpose set forth.

Disclaimer in Letters Patent No. 878,43?

l 878,435.-Rickard Varley, Englewood, N. J. INDUCTION-COIL. Patent dated 4, 1908. Disclaimer filed March 19, 1908, by assignee.

To the following claims appearing in said Letters Patent, to wit:

13. In a spark-coil for multiple-cylindered gas or vapor engines, an outer case containing separate insertible sparking elements, one for each cylinder, and each having a suitable vibrator upon one end, and the electrical connections at or near the other end, some of which connections protrude through the case and are provided for external connection thereon, substantially as shown and described.

14. In combination with a spark-coil and electric circuit thereto, a primary switch which in a certain position connects one source of electric energy to the coil, and'in a certain other position connect-s two sources of electrical energy, substantially as and 1 for the purpose set forth.[ Oficial Gazette. March 31, 1908.]

so 17. In combination with a spark coil and February 15. In combination with a sparking coil for gasengine, the electric current thereof supplied by batteries, an electric switch, one position of which shall complete the electric circuit ot'one battery singly, and in one position shall complete the circuit for two 1 batteries conjoiutly, substantially as shown and described. l 16. In combination with a sparking coil for gas-engine, the electric current thereof which is supplied by batteries. a plug-switch, one position of which shall complete the electric circuit of one battery singly, and in'one position shall complete the circuit for two batteries oonjointly, substantially as shown and described.

17. In combination with a spark-coil and battery-circuit thereof, a plug-switch containing three or more plugging-holes, two each connecting a single circuit independently, and one connecting two circuits in multiple thereol'. substantially as and 

